/******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Driver * Copyright(c) 2013 - 2016 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along * with this program. If not, see . * * The full GNU General Public License is included in this distribution in * the file called "COPYING". * * Contact Information: * e1000-devel Mailing List * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * ******************************************************************************/ #include "i40e.h" /*********************notification routines***********************/ /** * i40e_vc_vf_broadcast * @pf: pointer to the PF structure * @opcode: operation code * @retval: return value * @msg: pointer to the msg buffer * @msglen: msg length * * send a message to all VFs on a given PF **/ static void i40e_vc_vf_broadcast(struct i40e_pf *pf, enum i40e_virtchnl_ops v_opcode, i40e_status v_retval, u8 *msg, u16 msglen) { struct i40e_hw *hw = &pf->hw; struct i40e_vf *vf = pf->vf; int i; for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; /* Not all vfs are enabled so skip the ones that are not */ if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) && !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) continue; /* Ignore return value on purpose - a given VF may fail, but * we need to keep going and send to all of them */ i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, msg, msglen, NULL); } } /** * i40e_vc_notify_vf_link_state * @vf: pointer to the VF structure * * send a link status message to a single VF **/ static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) { struct i40e_virtchnl_pf_event pfe; struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_link_status *ls = &pf->hw.phy.link_info; int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; if (vf->link_forced) { pfe.event_data.link_event.link_status = vf->link_up; pfe.event_data.link_event.link_speed = (vf->link_up ? I40E_LINK_SPEED_40GB : 0); } else { pfe.event_data.link_event.link_status = ls->link_info & I40E_AQ_LINK_UP; pfe.event_data.link_event.link_speed = ls->link_speed; } i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(pfe), NULL); } /** * i40e_vc_notify_link_state * @pf: pointer to the PF structure * * send a link status message to all VFs on a given PF **/ void i40e_vc_notify_link_state(struct i40e_pf *pf) { int i; for (i = 0; i < pf->num_alloc_vfs; i++) i40e_vc_notify_vf_link_state(&pf->vf[i]); } /** * i40e_vc_notify_reset * @pf: pointer to the PF structure * * indicate a pending reset to all VFs on a given PF **/ void i40e_vc_notify_reset(struct i40e_pf *pf) { struct i40e_virtchnl_pf_event pfe; pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event)); } /** * i40e_vc_notify_vf_reset * @vf: pointer to the VF structure * * indicate a pending reset to the given VF **/ void i40e_vc_notify_vf_reset(struct i40e_vf *vf) { struct i40e_virtchnl_pf_event pfe; int abs_vf_id; /* validate the request */ if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) return; /* verify if the VF is in either init or active before proceeding */ if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) && !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) return; abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event), NULL); } /***********************misc routines*****************************/ /** * i40e_vc_disable_vf * @pf: pointer to the PF info * @vf: pointer to the VF info * * Disable the VF through a SW reset **/ static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf) { i40e_vc_notify_vf_reset(vf); i40e_reset_vf(vf, false); } /** * i40e_vc_isvalid_vsi_id * @vf: pointer to the VF info * @vsi_id: VF relative VSI id * * check for the valid VSI id **/ static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) { struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); return (vsi && (vsi->vf_id == vf->vf_id)); } /** * i40e_vc_isvalid_queue_id * @vf: pointer to the VF info * @vsi_id: vsi id * @qid: vsi relative queue id * * check for the valid queue id **/ static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, u16 qid) { struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); return (vsi && (qid < vsi->alloc_queue_pairs)); } /** * i40e_vc_isvalid_vector_id * @vf: pointer to the VF info * @vector_id: VF relative vector id * * check for the valid vector id **/ static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) { struct i40e_pf *pf = vf->pf; return vector_id < pf->hw.func_caps.num_msix_vectors_vf; } /***********************vf resource mgmt routines*****************/ /** * i40e_vc_get_pf_queue_id * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue id * * return PF relative queue id **/ static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, u8 vsi_queue_id) { struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; if (!vsi) return pf_queue_id; if (le16_to_cpu(vsi->info.mapping_flags) & I40E_AQ_VSI_QUE_MAP_NONCONTIG) pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); else pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + vsi_queue_id; return pf_queue_id; } /** * i40e_config_irq_link_list * @vf: pointer to the VF info * @vsi_id: id of VSI as given by the FW * @vecmap: irq map info * * configure irq link list from the map **/ static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, struct i40e_virtchnl_vector_map *vecmap) { unsigned long linklistmap = 0, tempmap; struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; u16 vsi_queue_id, pf_queue_id; enum i40e_queue_type qtype; u16 next_q, vector_id; u32 reg, reg_idx; u16 itr_idx = 0; vector_id = vecmap->vector_id; /* setup the head */ if (0 == vector_id) reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); else reg_idx = I40E_VPINT_LNKLSTN( ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + (vector_id - 1)); if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { /* Special case - No queues mapped on this vector */ wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); goto irq_list_done; } tempmap = vecmap->rxq_map; for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id)); } tempmap = vecmap->txq_map; for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id + 1)); } next_q = find_first_bit(&linklistmap, (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)); vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); wr32(hw, reg_idx, reg); while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { switch (qtype) { case I40E_QUEUE_TYPE_RX: reg_idx = I40E_QINT_RQCTL(pf_queue_id); itr_idx = vecmap->rxitr_idx; break; case I40E_QUEUE_TYPE_TX: reg_idx = I40E_QINT_TQCTL(pf_queue_id); itr_idx = vecmap->txitr_idx; break; default: break; } next_q = find_next_bit(&linklistmap, (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES), next_q + 1); if (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); } else { pf_queue_id = I40E_QUEUE_END_OF_LIST; qtype = 0; } /* format for the RQCTL & TQCTL regs is same */ reg = (vector_id) | (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); wr32(hw, reg_idx, reg); } /* if the vf is running in polling mode and using interrupt zero, * need to disable auto-mask on enabling zero interrupt for VFs. */ if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) && (vector_id == 0)) { reg = rd32(hw, I40E_GLINT_CTL); if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; wr32(hw, I40E_GLINT_CTL, reg); } } irq_list_done: i40e_flush(hw); } /** * i40e_release_iwarp_qvlist * @vf: pointer to the VF. * **/ static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; u32 msix_vf; u32 i; if (!vf->qvlist_info) return; msix_vf = pf->hw.func_caps.num_msix_vectors_vf; for (i = 0; i < qvlist_info->num_vectors; i++) { struct i40e_virtchnl_iwarp_qv_info *qv_info; u32 next_q_index, next_q_type; struct i40e_hw *hw = &pf->hw; u32 v_idx, reg_idx, reg; qv_info = &qvlist_info->qv_info[i]; if (!qv_info) continue; v_idx = qv_info->v_idx; if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { /* Figure out the queue after CEQ and make that the * first queue. */ reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); reg = (next_q_index & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | (next_q_type << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); } } kfree(vf->qvlist_info); vf->qvlist_info = NULL; } /** * i40e_config_iwarp_qvlist * @vf: pointer to the VF info * @qvlist_info: queue and vector list * * Return 0 on success or < 0 on error **/ static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_virtchnl_iwarp_qv_info *qv_info; u32 v_idx, i, reg_idx, reg; u32 next_q_idx, next_q_type; u32 msix_vf, size; int ret = 0; msix_vf = pf->hw.func_caps.num_msix_vectors_vf; if (qvlist_info->num_vectors > msix_vf) { dev_warn(&pf->pdev->dev, "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", qvlist_info->num_vectors, msix_vf); ret = -EINVAL; goto err_out; } size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) + (sizeof(struct i40e_virtchnl_iwarp_qv_info) * (qvlist_info->num_vectors - 1)); kfree(vf->qvlist_info); vf->qvlist_info = kzalloc(size, GFP_KERNEL); if (!vf->qvlist_info) { ret = -ENOMEM; goto err_out; } vf->qvlist_info->num_vectors = qvlist_info->num_vectors; msix_vf = pf->hw.func_caps.num_msix_vectors_vf; for (i = 0; i < qvlist_info->num_vectors; i++) { qv_info = &qvlist_info->qv_info[i]; if (!qv_info) continue; v_idx = qv_info->v_idx; /* Validate vector id belongs to this vf */ if (!i40e_vc_isvalid_vector_id(vf, v_idx)) { ret = -EINVAL; goto err_free; } vf->qvlist_info->qv_info[i] = *qv_info; reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); /* We might be sharing the interrupt, so get the first queue * index and type, push it down the list by adding the new * queue on top. Also link it with the new queue in CEQCTL. */ reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); reg = (qv_info->ceq_idx & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | (I40E_QUEUE_TYPE_PE_CEQ << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); } if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); } } return 0; err_free: kfree(vf->qvlist_info); vf->qvlist_info = NULL; err_out: return ret; } /** * i40e_config_vsi_tx_queue * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue index * @info: config. info * * configure tx queue **/ static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, u16 vsi_queue_id, struct i40e_virtchnl_txq_info *info) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_hmc_obj_txq tx_ctx; struct i40e_vsi *vsi; u16 pf_queue_id; u32 qtx_ctl; int ret = 0; if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { ret = -ENOENT; goto error_context; } pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); vsi = i40e_find_vsi_from_id(pf, vsi_id); if (!vsi) { ret = -ENOENT; goto error_context; } /* clear the context structure first */ memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); /* only set the required fields */ tx_ctx.base = info->dma_ring_addr / 128; tx_ctx.qlen = info->ring_len; tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); tx_ctx.rdylist_act = 0; tx_ctx.head_wb_ena = info->headwb_enabled; tx_ctx.head_wb_addr = info->dma_headwb_addr; /* clear the context in the HMC */ ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); if (ret) { dev_err(&pf->pdev->dev, "Failed to clear VF LAN Tx queue context %d, error: %d\n", pf_queue_id, ret); ret = -ENOENT; goto error_context; } /* set the context in the HMC */ ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); if (ret) { dev_err(&pf->pdev->dev, "Failed to set VF LAN Tx queue context %d error: %d\n", pf_queue_id, ret); ret = -ENOENT; goto error_context; } /* associate this queue with the PCI VF function */ qtx_ctl = I40E_QTX_CTL_VF_QUEUE; qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) & I40E_QTX_CTL_PF_INDX_MASK); qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) << I40E_QTX_CTL_VFVM_INDX_SHIFT) & I40E_QTX_CTL_VFVM_INDX_MASK); wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); i40e_flush(hw); error_context: return ret; } /** * i40e_config_vsi_rx_queue * @vf: pointer to the VF info * @vsi_id: id of VSI as provided by the FW * @vsi_queue_id: vsi relative queue index * @info: config. info * * configure rx queue **/ static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, u16 vsi_queue_id, struct i40e_virtchnl_rxq_info *info) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_hmc_obj_rxq rx_ctx; u16 pf_queue_id; int ret = 0; pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); /* clear the context structure first */ memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); /* only set the required fields */ rx_ctx.base = info->dma_ring_addr / 128; rx_ctx.qlen = info->ring_len; if (info->splithdr_enabled) { rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | I40E_RX_SPLIT_IP | I40E_RX_SPLIT_TCP_UDP | I40E_RX_SPLIT_SCTP; /* header length validation */ if (info->hdr_size > ((2 * 1024) - 64)) { ret = -EINVAL; goto error_param; } rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; /* set split mode 10b */ rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; } /* databuffer length validation */ if (info->databuffer_size > ((16 * 1024) - 128)) { ret = -EINVAL; goto error_param; } rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; /* max pkt. length validation */ if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { ret = -EINVAL; goto error_param; } rx_ctx.rxmax = info->max_pkt_size; /* enable 32bytes desc always */ rx_ctx.dsize = 1; /* default values */ rx_ctx.lrxqthresh = 2; rx_ctx.crcstrip = 1; rx_ctx.prefena = 1; rx_ctx.l2tsel = 1; /* clear the context in the HMC */ ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); if (ret) { dev_err(&pf->pdev->dev, "Failed to clear VF LAN Rx queue context %d, error: %d\n", pf_queue_id, ret); ret = -ENOENT; goto error_param; } /* set the context in the HMC */ ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); if (ret) { dev_err(&pf->pdev->dev, "Failed to set VF LAN Rx queue context %d error: %d\n", pf_queue_id, ret); ret = -ENOENT; goto error_param; } error_param: return ret; } /** * i40e_alloc_vsi_res * @vf: pointer to the VF info * @type: type of VSI to allocate * * alloc VF vsi context & resources **/ static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type) { struct i40e_mac_filter *f = NULL; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi; int ret = 0; vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id); if (!vsi) { dev_err(&pf->pdev->dev, "add vsi failed for VF %d, aq_err %d\n", vf->vf_id, pf->hw.aq.asq_last_status); ret = -ENOENT; goto error_alloc_vsi_res; } if (type == I40E_VSI_SRIOV) { u64 hena = i40e_pf_get_default_rss_hena(pf); vf->lan_vsi_idx = vsi->idx; vf->lan_vsi_id = vsi->id; /* If the port VLAN has been configured and then the * VF driver was removed then the VSI port VLAN * configuration was destroyed. Check if there is * a port VLAN and restore the VSI configuration if * needed. */ if (vf->port_vlan_id) i40e_vsi_add_pvid(vsi, vf->port_vlan_id); spin_lock_bh(&vsi->mac_filter_list_lock); if (is_valid_ether_addr(vf->default_lan_addr.addr)) { f = i40e_add_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id ? vf->port_vlan_id : -1, true, false); if (!f) dev_info(&pf->pdev->dev, "Could not add MAC filter %pM for VF %d\n", vf->default_lan_addr.addr, vf->vf_id); } spin_unlock_bh(&vsi->mac_filter_list_lock); i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); } /* program mac filter */ ret = i40e_sync_vsi_filters(vsi); if (ret) dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); /* Set VF bandwidth if specified */ if (vf->tx_rate) { ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, vf->tx_rate / 50, 0, NULL); if (ret) dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", vf->vf_id, ret); } error_alloc_vsi_res: return ret; } /** * i40e_enable_vf_mappings * @vf: pointer to the VF info * * enable VF mappings **/ static void i40e_enable_vf_mappings(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; u32 reg, total_queue_pairs = 0; int j; /* Tell the hardware we're using noncontiguous mapping. HW requires * that VF queues be mapped using this method, even when they are * contiguous in real life */ i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); /* enable VF vplan_qtable mappings */ reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); /* map PF queues to VF queues */ for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) { u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j); reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); total_queue_pairs++; } /* map PF queues to VSI */ for (j = 0; j < 7; j++) { if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) { reg = 0x07FF07FF; /* unused */ } else { u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j * 2); reg = qid; qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, (j * 2) + 1); reg |= qid << 16; } i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg); } i40e_flush(hw); } /** * i40e_disable_vf_mappings * @vf: pointer to the VF info * * disable VF mappings **/ static void i40e_disable_vf_mappings(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; int i; /* disable qp mappings */ wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); for (i = 0; i < I40E_MAX_VSI_QP; i++) wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), I40E_QUEUE_END_OF_LIST); i40e_flush(hw); } /** * i40e_free_vf_res * @vf: pointer to the VF info * * free VF resources **/ static void i40e_free_vf_res(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; u32 reg_idx, reg; int i, msix_vf; /* free vsi & disconnect it from the parent uplink */ if (vf->lan_vsi_idx) { i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); vf->lan_vsi_idx = 0; vf->lan_vsi_id = 0; } msix_vf = pf->hw.func_caps.num_msix_vectors_vf; /* disable interrupts so the VF starts in a known state */ for (i = 0; i < msix_vf; i++) { /* format is same for both registers */ if (0 == i) reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); else reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * (vf->vf_id)) + (i - 1)); wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); i40e_flush(hw); } /* clear the irq settings */ for (i = 0; i < msix_vf; i++) { /* format is same for both registers */ if (0 == i) reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); else reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * (vf->vf_id)) + (i - 1)); reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); wr32(hw, reg_idx, reg); i40e_flush(hw); } /* reset some of the state varibles keeping * track of the resources */ vf->num_queue_pairs = 0; vf->vf_states = 0; clear_bit(I40E_VF_STAT_INIT, &vf->vf_states); } /** * i40e_alloc_vf_res * @vf: pointer to the VF info * * allocate VF resources **/ static int i40e_alloc_vf_res(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; int total_queue_pairs = 0; int ret; /* allocate hw vsi context & associated resources */ ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); if (ret) goto error_alloc; total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; if (vf->trusted) set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); else clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); /* store the total qps number for the runtime * VF req validation */ vf->num_queue_pairs = total_queue_pairs; /* VF is now completely initialized */ set_bit(I40E_VF_STAT_INIT, &vf->vf_states); error_alloc: if (ret) i40e_free_vf_res(vf); return ret; } #define VF_DEVICE_STATUS 0xAA #define VF_TRANS_PENDING_MASK 0x20 /** * i40e_quiesce_vf_pci * @vf: pointer to the VF structure * * Wait for VF PCI transactions to be cleared after reset. Returns -EIO * if the transactions never clear. **/ static int i40e_quiesce_vf_pci(struct i40e_vf *vf) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; int vf_abs_id, i; u32 reg; vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; wr32(hw, I40E_PF_PCI_CIAA, VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); for (i = 0; i < 100; i++) { reg = rd32(hw, I40E_PF_PCI_CIAD); if ((reg & VF_TRANS_PENDING_MASK) == 0) return 0; udelay(1); } return -EIO; } /** * i40e_reset_vf * @vf: pointer to the VF structure * @flr: VFLR was issued or not * * reset the VF **/ void i40e_reset_vf(struct i40e_vf *vf, bool flr) { struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; u32 reg, reg_idx, bit_idx; bool rsd = false; int i; if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) return; /* warn the VF */ clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); /* In the case of a VFLR, the HW has already reset the VF and we * just need to clean up, so don't hit the VFRTRIG register. */ if (!flr) { /* reset VF using VPGEN_VFRTRIG reg */ reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); i40e_flush(hw); } /* clear the VFLR bit in GLGEN_VFLRSTAT */ reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); i40e_flush(hw); if (i40e_quiesce_vf_pci(vf)) dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", vf->vf_id); /* poll VPGEN_VFRSTAT reg to make sure * that reset is complete */ for (i = 0; i < 10; i++) { /* VF reset requires driver to first reset the VF and then * poll the status register to make sure that the reset * completed successfully. Due to internal HW FIFO flushes, * we must wait 10ms before the register will be valid. */ usleep_range(10000, 20000); reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { rsd = true; break; } } if (flr) usleep_range(10000, 20000); if (!rsd) dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", vf->vf_id); wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED); /* clear the reset bit in the VPGEN_VFRTRIG reg */ reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); /* On initial reset, we won't have any queues */ if (vf->lan_vsi_idx == 0) goto complete_reset; i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false); complete_reset: /* reallocate VF resources to reset the VSI state */ i40e_free_vf_res(vf); if (!i40e_alloc_vf_res(vf)) { int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; i40e_enable_vf_mappings(vf); set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); /* Do not notify the client during VF init */ if (vf->pf->num_alloc_vfs) i40e_notify_client_of_vf_reset(pf, abs_vf_id); vf->num_vlan = 0; } /* tell the VF the reset is done */ wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); i40e_flush(hw); clear_bit(__I40E_VF_DISABLE, &pf->state); } /** * i40e_free_vfs * @pf: pointer to the PF structure * * free VF resources **/ void i40e_free_vfs(struct i40e_pf *pf) { struct i40e_hw *hw = &pf->hw; u32 reg_idx, bit_idx; int i, tmp, vf_id; if (!pf->vf) return; while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) usleep_range(1000, 2000); i40e_notify_client_of_vf_enable(pf, 0); for (i = 0; i < pf->num_alloc_vfs; i++) if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx], false); /* Disable IOV before freeing resources. This lets any VF drivers * running in the host get themselves cleaned up before we yank * the carpet out from underneath their feet. */ if (!pci_vfs_assigned(pf->pdev)) pci_disable_sriov(pf->pdev); else dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); msleep(20); /* let any messages in transit get finished up */ /* free up VF resources */ tmp = pf->num_alloc_vfs; pf->num_alloc_vfs = 0; for (i = 0; i < tmp; i++) { if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) i40e_free_vf_res(&pf->vf[i]); /* disable qp mappings */ i40e_disable_vf_mappings(&pf->vf[i]); } kfree(pf->vf); pf->vf = NULL; /* This check is for when the driver is unloaded while VFs are * assigned. Setting the number of VFs to 0 through sysfs is caught * before this function ever gets called. */ if (!pci_vfs_assigned(pf->pdev)) { /* Acknowledge VFLR for all VFS. Without this, VFs will fail to * work correctly when SR-IOV gets re-enabled. */ for (vf_id = 0; vf_id < tmp; vf_id++) { reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); } } clear_bit(__I40E_VF_DISABLE, &pf->state); } #ifdef CONFIG_PCI_IOV /** * i40e_alloc_vfs * @pf: pointer to the PF structure * @num_alloc_vfs: number of VFs to allocate * * allocate VF resources **/ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) { struct i40e_vf *vfs; int i, ret = 0; /* Disable interrupt 0 so we don't try to handle the VFLR. */ i40e_irq_dynamic_disable_icr0(pf); /* Check to see if we're just allocating resources for extant VFs */ if (pci_num_vf(pf->pdev) != num_alloc_vfs) { ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); if (ret) { pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; pf->num_alloc_vfs = 0; goto err_iov; } } /* allocate memory */ vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); if (!vfs) { ret = -ENOMEM; goto err_alloc; } pf->vf = vfs; /* apply default profile */ for (i = 0; i < num_alloc_vfs; i++) { vfs[i].pf = pf; vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; vfs[i].vf_id = i; /* assign default capabilities */ set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); vfs[i].spoofchk = true; /* VF resources get allocated during reset */ i40e_reset_vf(&vfs[i], false); } pf->num_alloc_vfs = num_alloc_vfs; i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); err_alloc: if (ret) i40e_free_vfs(pf); err_iov: /* Re-enable interrupt 0. */ i40e_irq_dynamic_enable_icr0(pf, false); return ret; } #endif /** * i40e_pci_sriov_enable * @pdev: pointer to a pci_dev structure * @num_vfs: number of VFs to allocate * * Enable or change the number of VFs **/ static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) { #ifdef CONFIG_PCI_IOV struct i40e_pf *pf = pci_get_drvdata(pdev); int pre_existing_vfs = pci_num_vf(pdev); int err = 0; if (test_bit(__I40E_TESTING, &pf->state)) { dev_warn(&pdev->dev, "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); err = -EPERM; goto err_out; } if (pre_existing_vfs && pre_existing_vfs != num_vfs) i40e_free_vfs(pf); else if (pre_existing_vfs && pre_existing_vfs == num_vfs) goto out; if (num_vfs > pf->num_req_vfs) { dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", num_vfs, pf->num_req_vfs); err = -EPERM; goto err_out; } dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); err = i40e_alloc_vfs(pf, num_vfs); if (err) { dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); goto err_out; } out: return num_vfs; err_out: return err; #endif return 0; } /** * i40e_pci_sriov_configure * @pdev: pointer to a pci_dev structure * @num_vfs: number of VFs to allocate * * Enable or change the number of VFs. Called when the user updates the number * of VFs in sysfs. **/ int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) { struct i40e_pf *pf = pci_get_drvdata(pdev); if (num_vfs) { if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); } return i40e_pci_sriov_enable(pdev, num_vfs); } if (!pci_vfs_assigned(pf->pdev)) { i40e_free_vfs(pf); pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); } else { dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); return -EINVAL; } return 0; } /***********************virtual channel routines******************/ /** * i40e_vc_send_msg_to_vf * @vf: pointer to the VF info * @v_opcode: virtual channel opcode * @v_retval: virtual channel return value * @msg: pointer to the msg buffer * @msglen: msg length * * send msg to VF **/ static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, u32 v_retval, u8 *msg, u16 msglen) { struct i40e_pf *pf; struct i40e_hw *hw; int abs_vf_id; i40e_status aq_ret; /* validate the request */ if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) return -EINVAL; pf = vf->pf; hw = &pf->hw; abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; /* single place to detect unsuccessful return values */ if (v_retval) { vf->num_invalid_msgs++; dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", vf->vf_id, v_opcode, v_retval); if (vf->num_invalid_msgs > I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { dev_err(&pf->pdev->dev, "Number of invalid messages exceeded for VF %d\n", vf->vf_id); dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); } } else { vf->num_valid_msgs++; /* reset the invalid counter, if a valid message is received. */ vf->num_invalid_msgs = 0; } aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, msg, msglen, NULL); if (aq_ret) { dev_info(&pf->pdev->dev, "Unable to send the message to VF %d aq_err %d\n", vf->vf_id, pf->hw.aq.asq_last_status); return -EIO; } return 0; } /** * i40e_vc_send_resp_to_vf * @vf: pointer to the VF info * @opcode: operation code * @retval: return value * * send resp msg to VF **/ static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, enum i40e_virtchnl_ops opcode, i40e_status retval) { return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); } /** * i40e_vc_get_version_msg * @vf: pointer to the VF info * * called from the VF to request the API version used by the PF **/ static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) { struct i40e_virtchnl_version_info info = { I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR }; vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg; /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ if (VF_IS_V10(vf)) info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, I40E_SUCCESS, (u8 *)&info, sizeof(struct i40e_virtchnl_version_info)); } /** * i40e_vc_get_vf_resources_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to request its resources **/ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) { struct i40e_virtchnl_vf_resource *vfres = NULL; struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; struct i40e_vsi *vsi; int num_vsis = 1; int len = 0; int ret; if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto err; } len = (sizeof(struct i40e_virtchnl_vf_resource) + sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); vfres = kzalloc(len, GFP_KERNEL); if (!vfres) { aq_ret = I40E_ERR_NO_MEMORY; len = 0; goto err; } if (VF_IS_V11(vf)) vf->driver_caps = *(u32 *)msg; else vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 | I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG | I40E_VIRTCHNL_VF_OFFLOAD_VLAN; vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi->info.pvid) vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) && (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) { vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP; set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states); } if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) { vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF; } else { if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) && (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)) vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ; else vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG; } if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) { if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; } if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) { if (pf->flags & I40E_FLAG_MFP_ENABLED) { dev_err(&pf->pdev->dev, "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", vf->vf_id); ret = I40E_ERR_PARAM; goto err; } vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING; } if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) { if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; } vfres->num_vsis = num_vsis; vfres->num_queue_pairs = vf->num_queue_pairs; vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; if (vf->lan_vsi_idx) { vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV; vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; /* VFs only use TC 0 */ vfres->vsi_res[0].qset_handle = le16_to_cpu(vsi->info.qs_handle[0]); ether_addr_copy(vfres->vsi_res[0].default_mac_addr, vf->default_lan_addr.addr); } set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); err: /* send the response back to the VF */ ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, aq_ret, (u8 *)vfres, len); kfree(vfres); return ret; } /** * i40e_vc_reset_vf_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to reset itself, * unlike other virtchnl messages, PF driver * doesn't send the response back to the VF **/ static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) { if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) i40e_reset_vf(vf, false); } /** * i40e_getnum_vf_vsi_vlan_filters * @vsi: pointer to the vsi * * called to get the number of VLANs offloaded on this VF **/ static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) { struct i40e_mac_filter *f; int num_vlans = 0; list_for_each_entry(f, &vsi->mac_filter_list, list) { if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) num_vlans++; } return num_vlans; } /** * i40e_vc_config_promiscuous_mode_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to configure the promiscuous mode of * VF vsis **/ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_promisc_info *info = (struct i40e_virtchnl_promisc_info *)msg; struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; struct i40e_mac_filter *f; i40e_status aq_ret = 0; bool allmulti = false; struct i40e_vsi *vsi; bool alluni = false; int aq_err = 0; vsi = i40e_find_vsi_from_id(pf, info->vsi_id); if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || !vsi) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { dev_err(&pf->pdev->dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n", vf->vf_id); /* Lie to the VF on purpose. */ aq_ret = 0; goto error_param; } /* Multicast promiscuous handling*/ if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) allmulti = true; if (vf->port_vlan_id) { aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, allmulti, vf->port_vlan_id, NULL); } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { list_for_each_entry(f, &vsi->mac_filter_list, list) { if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) continue; aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, allmulti, f->vlan, NULL); aq_err = pf->hw.aq.asq_last_status; if (aq_ret) { dev_err(&pf->pdev->dev, "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n", f->vlan, i40e_stat_str(&pf->hw, aq_ret), i40e_aq_str(&pf->hw, aq_err)); break; } } } else { aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, allmulti, NULL); aq_err = pf->hw.aq.asq_last_status; if (aq_ret) { dev_err(&pf->pdev->dev, "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", vf->vf_id, i40e_stat_str(&pf->hw, aq_ret), i40e_aq_str(&pf->hw, aq_err)); goto error_param_int; } } if (!aq_ret) { dev_info(&pf->pdev->dev, "VF %d successfully set multicast promiscuous mode\n", vf->vf_id); if (allmulti) set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); else clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); } if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC) alluni = true; if (vf->port_vlan_id) { aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, alluni, vf->port_vlan_id, NULL); } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { list_for_each_entry(f, &vsi->mac_filter_list, list) { aq_ret = 0; if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) { aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, alluni, f->vlan, NULL); aq_err = pf->hw.aq.asq_last_status; } if (aq_ret) dev_err(&pf->pdev->dev, "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n", f->vlan, i40e_stat_str(&pf->hw, aq_ret), i40e_aq_str(&pf->hw, aq_err)); } } else { aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, allmulti, NULL, true); aq_err = pf->hw.aq.asq_last_status; if (aq_ret) dev_err(&pf->pdev->dev, "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n", vf->vf_id, info->flags, i40e_stat_str(&pf->hw, aq_ret), i40e_aq_str(&pf->hw, aq_err)); } error_param_int: if (!aq_ret) { dev_info(&pf->pdev->dev, "VF %d successfully set unicast promiscuous mode\n", vf->vf_id); if (alluni) set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); else clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); } error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, aq_ret); } /** * i40e_vc_config_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to configure the rx/tx * queues **/ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_vsi_queue_config_info *qci = (struct i40e_virtchnl_vsi_queue_config_info *)msg; struct i40e_virtchnl_queue_pair_info *qpi; struct i40e_pf *pf = vf->pf; u16 vsi_id, vsi_queue_id; i40e_status aq_ret = 0; int i; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } vsi_id = qci->vsi_id; if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < qci->num_queue_pairs; i++) { qpi = &qci->qpair[i]; vsi_queue_id = qpi->txq.queue_id; if ((qpi->txq.vsi_id != vsi_id) || (qpi->rxq.vsi_id != vsi_id) || (qpi->rxq.queue_id != vsi_queue_id) || !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, &qpi->rxq) || i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, &qpi->txq)) { aq_ret = I40E_ERR_PARAM; goto error_param; } } /* set vsi num_queue_pairs in use to num configured by VF */ pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs; error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, aq_ret); } /** * i40e_vc_config_irq_map_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to configure the irq to * queue map **/ static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_irq_map_info *irqmap_info = (struct i40e_virtchnl_irq_map_info *)msg; struct i40e_virtchnl_vector_map *map; u16 vsi_id, vsi_queue_id, vector_id; i40e_status aq_ret = 0; unsigned long tempmap; int i; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < irqmap_info->num_vectors; i++) { map = &irqmap_info->vecmap[i]; vector_id = map->vector_id; vsi_id = map->vsi_id; /* validate msg params */ if (!i40e_vc_isvalid_vector_id(vf, vector_id) || !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } /* lookout for the invalid queue index */ tempmap = map->rxq_map; for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { if (!i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } } tempmap = map->txq_map; for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { if (!i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } } i40e_config_irq_link_list(vf, vsi_id, map); } error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, aq_ret); } /** * i40e_vc_enable_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to enable all or specific queue(s) **/ static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_queue_select *vqs = (struct i40e_virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; u16 vsi_id = vqs->vsi_id; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true)) aq_ret = I40E_ERR_TIMEOUT; error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, aq_ret); } /** * i40e_vc_disable_queues_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to disable all or specific * queue(s) **/ static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_queue_select *vqs = (struct i40e_virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false)) aq_ret = I40E_ERR_TIMEOUT; error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, aq_ret); } /** * i40e_vc_get_stats_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF to get vsi stats **/ static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_queue_select *vqs = (struct i40e_virtchnl_queue_select *)msg; struct i40e_pf *pf = vf->pf; struct i40e_eth_stats stats; i40e_status aq_ret = 0; struct i40e_vsi *vsi; memset(&stats, 0, sizeof(struct i40e_eth_stats)); if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi) { aq_ret = I40E_ERR_PARAM; goto error_param; } i40e_update_eth_stats(vsi); stats = vsi->eth_stats; error_param: /* send the response back to the VF */ return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, (u8 *)&stats, sizeof(stats)); } /* If the VF is not trusted restrict the number of MAC/VLAN it can program */ #define I40E_VC_MAX_MAC_ADDR_PER_VF 8 #define I40E_VC_MAX_VLAN_PER_VF 8 /** * i40e_check_vf_permission * @vf: pointer to the VF info * @macaddr: pointer to the MAC Address being checked * * Check if the VF has permission to add or delete unicast MAC address * filters and return error code -EPERM if not. Then check if the * address filter requested is broadcast or zero and if so return * an invalid MAC address error code. **/ static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) { struct i40e_pf *pf = vf->pf; int ret = 0; if (is_broadcast_ether_addr(macaddr) || is_zero_ether_addr(macaddr)) { dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); ret = I40E_ERR_INVALID_MAC_ADDR; } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { /* If the host VMM administrator has set the VF MAC address * administratively via the ndo_set_vf_mac command then deny * permission to the VF to add or delete unicast MAC addresses. * Unless the VF is privileged and then it can do whatever. * The VF may request to set the MAC address filter already * assigned to it so do not return an error in that case. */ dev_err(&pf->pdev->dev, "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n"); ret = -EPERM; } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) && !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { dev_err(&pf->pdev->dev, "VF is not trusted, switch the VF to trusted to add more functionality\n"); ret = -EPERM; } return ret; } /** * i40e_vc_add_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * add guest mac address filter **/ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_ether_addr_list *al = (struct i40e_virtchnl_ether_addr_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = al->vsi_id; i40e_status ret = 0; int i; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < al->num_elements; i++) { ret = i40e_check_vf_permission(vf, al->list[i].addr); if (ret) goto error_param; } vsi = pf->vsi[vf->lan_vsi_idx]; /* Lock once, because all function inside for loop accesses VSI's * MAC filter list which needs to be protected using same lock. */ spin_lock_bh(&vsi->mac_filter_list_lock); /* add new addresses to the list */ for (i = 0; i < al->num_elements; i++) { struct i40e_mac_filter *f; f = i40e_find_mac(vsi, al->list[i].addr, true, false); if (!f) { if (i40e_is_vsi_in_vlan(vsi)) f = i40e_put_mac_in_vlan(vsi, al->list[i].addr, true, false); else f = i40e_add_filter(vsi, al->list[i].addr, -1, true, false); } if (!f) { dev_err(&pf->pdev->dev, "Unable to add MAC filter %pM for VF %d\n", al->list[i].addr, vf->vf_id); ret = I40E_ERR_PARAM; spin_unlock_bh(&vsi->mac_filter_list_lock); goto error_param; } else { vf->num_mac++; } } spin_unlock_bh(&vsi->mac_filter_list_lock); /* program the updated filter list */ ret = i40e_sync_vsi_filters(vsi); if (ret) dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", vf->vf_id, ret); error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, ret); } /** * i40e_vc_del_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * remove guest mac address filter **/ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_ether_addr_list *al = (struct i40e_virtchnl_ether_addr_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = al->vsi_id; i40e_status ret = 0; int i; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < al->num_elements; i++) { if (is_broadcast_ether_addr(al->list[i].addr) || is_zero_ether_addr(al->list[i].addr)) { dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", al->list[i].addr, vf->vf_id); ret = I40E_ERR_INVALID_MAC_ADDR; goto error_param; } if (vf->pf_set_mac && ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) { dev_err(&pf->pdev->dev, "MAC addr %pM has been set by PF, cannot delete it for VF %d, reset VF to change MAC addr\n", vf->default_lan_addr.addr, vf->vf_id); ret = I40E_ERR_PARAM; goto error_param; } } vsi = pf->vsi[vf->lan_vsi_idx]; spin_lock_bh(&vsi->mac_filter_list_lock); /* delete addresses from the list */ for (i = 0; i < al->num_elements; i++) if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) { ret = I40E_ERR_INVALID_MAC_ADDR; spin_unlock_bh(&vsi->mac_filter_list_lock); goto error_param; } else { vf->num_mac--; } spin_unlock_bh(&vsi->mac_filter_list_lock); /* program the updated filter list */ ret = i40e_sync_vsi_filters(vsi); if (ret) dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", vf->vf_id, ret); error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, ret); } /** * i40e_vc_add_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * program guest vlan id **/ static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_vlan_filter_list *vfl = (struct i40e_virtchnl_vlan_filter_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = vfl->vsi_id; i40e_status aq_ret = 0; int i; if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { dev_err(&pf->pdev->dev, "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); goto error_param; } if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] > I40E_MAX_VLANID) { aq_ret = I40E_ERR_PARAM; dev_err(&pf->pdev->dev, "invalid VF VLAN id %d\n", vfl->vlan_id[i]); goto error_param; } } vsi = pf->vsi[vf->lan_vsi_idx]; if (vsi->info.pvid) { aq_ret = I40E_ERR_PARAM; goto error_param; } i40e_vlan_stripping_enable(vsi); for (i = 0; i < vfl->num_elements; i++) { /* add new VLAN filter */ int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); if (!ret) vf->num_vlan++; if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, true, vfl->vlan_id[i], NULL); if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, true, vfl->vlan_id[i], NULL); if (ret) dev_err(&pf->pdev->dev, "Unable to add VLAN filter %d for VF %d, error %d\n", vfl->vlan_id[i], vf->vf_id, ret); } error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); } /** * i40e_vc_remove_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * remove programmed guest vlan id **/ static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_vlan_filter_list *vfl = (struct i40e_virtchnl_vlan_filter_list *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = vfl->vsi_id; i40e_status aq_ret = 0; int i; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] > I40E_MAX_VLANID) { aq_ret = I40E_ERR_PARAM; goto error_param; } } vsi = pf->vsi[vf->lan_vsi_idx]; if (vsi->info.pvid) { aq_ret = I40E_ERR_PARAM; goto error_param; } for (i = 0; i < vfl->num_elements; i++) { int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); if (!ret) vf->num_vlan--; if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, false, vfl->vlan_id[i], NULL); if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, false, vfl->vlan_id[i], NULL); if (ret) dev_err(&pf->pdev->dev, "Unable to delete VLAN filter %d for VF %d, error %d\n", vfl->vlan_id[i], vf->vf_id, ret); } error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); } /** * i40e_vc_iwarp_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * called from the VF for the iwarp msgs **/ static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_pf *pf = vf->pf; int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, msg, msglen); error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP, aq_ret); } /** * i40e_vc_iwarp_qvmap_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * @config: config qvmap or release it * * called from the VF for the iwarp msgs **/ static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen, bool config) { struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = (struct i40e_virtchnl_iwarp_qvlist_info *)msg; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto error_param; } if (config) { if (i40e_config_iwarp_qvlist(vf, qvlist_info)) aq_ret = I40E_ERR_PARAM; } else { i40e_release_iwarp_qvlist(vf); } error_param: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, aq_ret); } /** * i40e_vc_config_rss_key * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * Configure the VF's RSS key **/ static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_rss_key *vrk = (struct i40e_virtchnl_rss_key *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = vrk->vsi_id; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id) || (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { aq_ret = I40E_ERR_PARAM; goto err; } vsi = pf->vsi[vf->lan_vsi_idx]; aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); err: /* send the response to the VF */ return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY, aq_ret); } /** * i40e_vc_config_rss_lut * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * Configure the VF's RSS LUT **/ static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_rss_lut *vrl = (struct i40e_virtchnl_rss_lut *)msg; struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = NULL; u16 vsi_id = vrl->vsi_id; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || !i40e_vc_isvalid_vsi_id(vf, vsi_id) || (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { aq_ret = I40E_ERR_PARAM; goto err; } vsi = pf->vsi[vf->lan_vsi_idx]; aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); /* send the response to the VF */ err: return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT, aq_ret); } /** * i40e_vc_get_rss_hena * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * Return the RSS HENA bits allowed by the hardware **/ static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_rss_hena *vrh = NULL; struct i40e_pf *pf = vf->pf; i40e_status aq_ret = 0; int len = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto err; } len = sizeof(struct i40e_virtchnl_rss_hena); vrh = kzalloc(len, GFP_KERNEL); if (!vrh) { aq_ret = I40E_ERR_NO_MEMORY; len = 0; goto err; } vrh->hena = i40e_pf_get_default_rss_hena(pf); err: /* send the response back to the VF */ aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS, aq_ret, (u8 *)vrh, len); kfree(vrh); return aq_ret; } /** * i40e_vc_set_rss_hena * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * * Set the RSS HENA bits for the VF **/ static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) { struct i40e_virtchnl_rss_hena *vrh = (struct i40e_virtchnl_rss_hena *)msg; struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; i40e_status aq_ret = 0; if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; goto err; } i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(vrh->hena >> 32)); /* send the response to the VF */ err: return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA, aq_ret); } /** * i40e_vc_validate_vf_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @msglen: msg length * @msghndl: msg handle * * validate msg **/ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, u32 v_retval, u8 *msg, u16 msglen) { bool err_msg_format = false; int valid_len = 0; /* Check if VF is disabled. */ if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states)) return I40E_ERR_PARAM; /* Validate message length. */ switch (v_opcode) { case I40E_VIRTCHNL_OP_VERSION: valid_len = sizeof(struct i40e_virtchnl_version_info); break; case I40E_VIRTCHNL_OP_RESET_VF: break; case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: if (VF_IS_V11(vf)) valid_len = sizeof(u32); break; case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: valid_len = sizeof(struct i40e_virtchnl_txq_info); break; case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: valid_len = sizeof(struct i40e_virtchnl_rxq_info); break; case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); if (msglen >= valid_len) { struct i40e_virtchnl_vsi_queue_config_info *vqc = (struct i40e_virtchnl_vsi_queue_config_info *)msg; valid_len += (vqc->num_queue_pairs * sizeof(struct i40e_virtchnl_queue_pair_info)); if (vqc->num_queue_pairs == 0) err_msg_format = true; } break; case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: valid_len = sizeof(struct i40e_virtchnl_irq_map_info); if (msglen >= valid_len) { struct i40e_virtchnl_irq_map_info *vimi = (struct i40e_virtchnl_irq_map_info *)msg; valid_len += (vimi->num_vectors * sizeof(struct i40e_virtchnl_vector_map)); if (vimi->num_vectors == 0) err_msg_format = true; } break; case I40E_VIRTCHNL_OP_ENABLE_QUEUES: case I40E_VIRTCHNL_OP_DISABLE_QUEUES: valid_len = sizeof(struct i40e_virtchnl_queue_select); break; case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); if (msglen >= valid_len) { struct i40e_virtchnl_ether_addr_list *veal = (struct i40e_virtchnl_ether_addr_list *)msg; valid_len += veal->num_elements * sizeof(struct i40e_virtchnl_ether_addr); if (veal->num_elements == 0) err_msg_format = true; } break; case I40E_VIRTCHNL_OP_ADD_VLAN: case I40E_VIRTCHNL_OP_DEL_VLAN: valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); if (msglen >= valid_len) { struct i40e_virtchnl_vlan_filter_list *vfl = (struct i40e_virtchnl_vlan_filter_list *)msg; valid_len += vfl->num_elements * sizeof(u16); if (vfl->num_elements == 0) err_msg_format = true; } break; case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: valid_len = sizeof(struct i40e_virtchnl_promisc_info); break; case I40E_VIRTCHNL_OP_GET_STATS: valid_len = sizeof(struct i40e_virtchnl_queue_select); break; case I40E_VIRTCHNL_OP_IWARP: /* These messages are opaque to us and will be validated in * the RDMA client code. We just need to check for nonzero * length. The firmware will enforce max length restrictions. */ if (msglen) valid_len = msglen; else err_msg_format = true; break; case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: valid_len = 0; break; case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info); if (msglen >= valid_len) { struct i40e_virtchnl_iwarp_qvlist_info *qv = (struct i40e_virtchnl_iwarp_qvlist_info *)msg; if (qv->num_vectors == 0) { err_msg_format = true; break; } valid_len += ((qv->num_vectors - 1) * sizeof(struct i40e_virtchnl_iwarp_qv_info)); } break; case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: valid_len = sizeof(struct i40e_virtchnl_rss_key); if (msglen >= valid_len) { struct i40e_virtchnl_rss_key *vrk = (struct i40e_virtchnl_rss_key *)msg; if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) { err_msg_format = true; break; } valid_len += vrk->key_len - 1; } break; case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: valid_len = sizeof(struct i40e_virtchnl_rss_lut); if (msglen >= valid_len) { struct i40e_virtchnl_rss_lut *vrl = (struct i40e_virtchnl_rss_lut *)msg; if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { err_msg_format = true; break; } valid_len += vrl->lut_entries - 1; } break; case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: break; case I40E_VIRTCHNL_OP_SET_RSS_HENA: valid_len = sizeof(struct i40e_virtchnl_rss_hena); break; /* These are always errors coming from the VF. */ case I40E_VIRTCHNL_OP_EVENT: case I40E_VIRTCHNL_OP_UNKNOWN: default: return -EPERM; } /* few more checks */ if ((valid_len != msglen) || (err_msg_format)) { i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); return -EINVAL; } else { return 0; } } /** * i40e_vc_process_vf_msg * @pf: pointer to the PF structure * @vf_id: source VF id * @msg: pointer to the msg buffer * @msglen: msg length * @msghndl: msg handle * * called from the common aeq/arq handler to * process request from VF **/ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, u32 v_retval, u8 *msg, u16 msglen) { struct i40e_hw *hw = &pf->hw; int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; struct i40e_vf *vf; int ret; pf->vf_aq_requests++; if (local_vf_id >= pf->num_alloc_vfs) return -EINVAL; vf = &(pf->vf[local_vf_id]); /* perform basic checks on the msg */ ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); if (ret) { dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", local_vf_id, v_opcode, msglen); return ret; } switch (v_opcode) { case I40E_VIRTCHNL_OP_VERSION: ret = i40e_vc_get_version_msg(vf, msg); break; case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: ret = i40e_vc_get_vf_resources_msg(vf, msg); break; case I40E_VIRTCHNL_OP_RESET_VF: i40e_vc_reset_vf_msg(vf); ret = 0; break; case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: ret = i40e_vc_config_queues_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_ENABLE_QUEUES: ret = i40e_vc_enable_queues_msg(vf, msg, msglen); i40e_vc_notify_vf_link_state(vf); break; case I40E_VIRTCHNL_OP_DISABLE_QUEUES: ret = i40e_vc_disable_queues_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_ADD_VLAN: ret = i40e_vc_add_vlan_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_DEL_VLAN: ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_GET_STATS: ret = i40e_vc_get_stats_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_IWARP: ret = i40e_vc_iwarp_msg(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true); break; case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false); break; case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: ret = i40e_vc_config_rss_key(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: ret = i40e_vc_config_rss_lut(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: ret = i40e_vc_get_rss_hena(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_SET_RSS_HENA: ret = i40e_vc_set_rss_hena(vf, msg, msglen); break; case I40E_VIRTCHNL_OP_UNKNOWN: default: dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", v_opcode, local_vf_id); ret = i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_NOT_IMPLEMENTED); break; } return ret; } /** * i40e_vc_process_vflr_event * @pf: pointer to the PF structure * * called from the vlfr irq handler to * free up VF resources and state variables **/ int i40e_vc_process_vflr_event(struct i40e_pf *pf) { struct i40e_hw *hw = &pf->hw; u32 reg, reg_idx, bit_idx; struct i40e_vf *vf; int vf_id; if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) return 0; /* Re-enable the VFLR interrupt cause here, before looking for which * VF got reset. Otherwise, if another VF gets a reset while the * first one is being processed, that interrupt will be lost, and * that VF will be stuck in reset forever. */ reg = rd32(hw, I40E_PFINT_ICR0_ENA); reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; wr32(hw, I40E_PFINT_ICR0_ENA, reg); i40e_flush(hw); clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state); for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; /* read GLGEN_VFLRSTAT register to find out the flr VFs */ vf = &pf->vf[vf_id]; reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); if (reg & BIT(bit_idx)) /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ i40e_reset_vf(vf, true); } return 0; } /** * i40e_ndo_set_vf_mac * @netdev: network interface device structure * @vf_id: VF identifier * @mac: mac address * * program VF mac address **/ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_mac_filter *f; struct i40e_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); ret = -EINVAL; goto error_param; } vf = &(pf->vf[vf_id]); vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", vf_id); ret = -EAGAIN; goto error_param; } if (is_multicast_ether_addr(mac)) { dev_err(&pf->pdev->dev, "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); ret = -EINVAL; goto error_param; } /* Lock once because below invoked function add/del_filter requires * mac_filter_list_lock to be held */ spin_lock_bh(&vsi->mac_filter_list_lock); /* delete the temporary mac address */ if (!is_zero_ether_addr(vf->default_lan_addr.addr)) i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id ? vf->port_vlan_id : -1, true, false); /* Delete all the filters for this VSI - we're going to kill it * anyway. */ list_for_each_entry(f, &vsi->mac_filter_list, list) i40e_del_filter(vsi, f->macaddr, f->vlan, true, false); spin_unlock_bh(&vsi->mac_filter_list_lock); dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); /* program mac filter */ if (i40e_sync_vsi_filters(vsi)) { dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); ret = -EIO; goto error_param; } ether_addr_copy(vf->default_lan_addr.addr, mac); vf->pf_set_mac = true; /* Force the VF driver stop so it has to reload with new MAC address */ i40e_vc_disable_vf(pf, vf); dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); error_param: return ret; } /** * i40e_ndo_set_vf_port_vlan * @netdev: network interface device structure * @vf_id: VF identifier * @vlan_id: mac address * @qos: priority setting * @vlan_proto: vlan protocol * * program VF vlan id and/or qos **/ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, __be16 vlan_proto) { u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; bool is_vsi_in_vlan = false; struct i40e_vsi *vsi; struct i40e_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); ret = -EINVAL; goto error_pvid; } if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); ret = -EINVAL; goto error_pvid; } if (vlan_proto != htons(ETH_P_8021Q)) { dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); ret = -EPROTONOSUPPORT; goto error_pvid; } vf = &(pf->vf[vf_id]); vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", vf_id); ret = -EAGAIN; goto error_pvid; } if (le16_to_cpu(vsi->info.pvid) == vlanprio) /* duplicate request, so just return success */ goto error_pvid; spin_lock_bh(&vsi->mac_filter_list_lock); is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi); spin_unlock_bh(&vsi->mac_filter_list_lock); if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) { dev_err(&pf->pdev->dev, "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n", vf_id); /* Administrator Error - knock the VF offline until he does * the right thing by reconfiguring his network correctly * and then reloading the VF driver. */ i40e_vc_disable_vf(pf, vf); /* During reset the VF got a new VSI, so refresh the pointer. */ vsi = pf->vsi[vf->lan_vsi_idx]; } /* Check for condition where there was already a port VLAN ID * filter set and now it is being deleted by setting it to zero. * Additionally check for the condition where there was a port * VLAN but now there is a new and different port VLAN being set. * Before deleting all the old VLAN filters we must add new ones * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our * MAC addresses deleted. */ if ((!(vlan_id || qos) || vlanprio != le16_to_cpu(vsi->info.pvid)) && vsi->info.pvid) ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY); if (vsi->info.pvid) { /* kill old VLAN */ ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & VLAN_VID_MASK)); if (ret) { dev_info(&vsi->back->pdev->dev, "remove VLAN failed, ret=%d, aq_err=%d\n", ret, pf->hw.aq.asq_last_status); } } if (vlan_id || qos) ret = i40e_vsi_add_pvid(vsi, vlanprio); else i40e_vsi_remove_pvid(vsi); if (vlan_id) { dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan_id, qos, vf_id); /* add new VLAN filter */ ret = i40e_vsi_add_vlan(vsi, vlan_id); if (ret) { dev_info(&vsi->back->pdev->dev, "add VF VLAN failed, ret=%d aq_err=%d\n", ret, vsi->back->hw.aq.asq_last_status); goto error_pvid; } /* Kill non-vlan MAC filters - ignore error return since * there might not be any non-vlan MAC filters. */ i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY); } if (ret) { dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); goto error_pvid; } /* The Port VLAN needs to be saved across resets the same as the * default LAN MAC address. */ vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); ret = 0; error_pvid: return ret; } #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ /** * i40e_ndo_set_vf_bw * @netdev: network interface device structure * @vf_id: VF identifier * @tx_rate: Tx rate * * configure VF Tx rate **/ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, int max_tx_rate) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vsi *vsi; struct i40e_vf *vf; int speed = 0; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); ret = -EINVAL; goto error; } if (min_tx_rate) { dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", min_tx_rate, vf_id); return -EINVAL; } vf = &(pf->vf[vf_id]); vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", vf_id); ret = -EAGAIN; goto error; } switch (pf->hw.phy.link_info.link_speed) { case I40E_LINK_SPEED_40GB: speed = 40000; break; case I40E_LINK_SPEED_20GB: speed = 20000; break; case I40E_LINK_SPEED_10GB: speed = 10000; break; case I40E_LINK_SPEED_1GB: speed = 1000; break; default: break; } if (max_tx_rate > speed) { dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.", max_tx_rate, vf->vf_id); ret = -EINVAL; goto error; } if ((max_tx_rate < 50) && (max_tx_rate > 0)) { dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); max_tx_rate = 50; } /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, max_tx_rate / I40E_BW_CREDIT_DIVISOR, I40E_MAX_BW_INACTIVE_ACCUM, NULL); if (ret) { dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", ret); ret = -EIO; goto error; } vf->tx_rate = max_tx_rate; error: return ret; } /** * i40e_ndo_get_vf_config * @netdev: network interface device structure * @vf_id: VF identifier * @ivi: VF configuration structure * * return VF configuration **/ int i40e_ndo_get_vf_config(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); ret = -EINVAL; goto error_param; } vf = &(pf->vf[vf_id]); /* first vsi is always the LAN vsi */ vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", vf_id); ret = -EAGAIN; goto error_param; } ivi->vf = vf_id; ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); ivi->max_tx_rate = vf->tx_rate; ivi->min_tx_rate = 0; ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> I40E_VLAN_PRIORITY_SHIFT; if (vf->link_forced == false) ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; else if (vf->link_up == true) ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; else ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; ivi->spoofchk = vf->spoofchk; ivi->trusted = vf->trusted; ret = 0; error_param: return ret; } /** * i40e_ndo_set_vf_link_state * @netdev: network interface device structure * @vf_id: VF identifier * @link: required link state * * Set the link state of a specified VF, regardless of physical link state **/ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_virtchnl_pf_event pfe; struct i40e_hw *hw = &pf->hw; struct i40e_vf *vf; int abs_vf_id; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); ret = -EINVAL; goto error_out; } vf = &pf->vf[vf_id]; abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; switch (link) { case IFLA_VF_LINK_STATE_AUTO: vf->link_forced = false; pfe.event_data.link_event.link_status = pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; pfe.event_data.link_event.link_speed = pf->hw.phy.link_info.link_speed; break; case IFLA_VF_LINK_STATE_ENABLE: vf->link_forced = true; vf->link_up = true; pfe.event_data.link_event.link_status = true; pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; break; case IFLA_VF_LINK_STATE_DISABLE: vf->link_forced = true; vf->link_up = false; pfe.event_data.link_event.link_status = false; pfe.event_data.link_event.link_speed = 0; break; default: ret = -EINVAL; goto error_out; } /* Notify the VF of its new link state */ i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(pfe), NULL); error_out: return ret; } /** * i40e_ndo_set_vf_spoofchk * @netdev: network interface device structure * @vf_id: VF identifier * @enable: flag to enable or disable feature * * Enable or disable VF spoof checking **/ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_vsi_context ctxt; struct i40e_hw *hw = &pf->hw; struct i40e_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); ret = -EINVAL; goto out; } vf = &(pf->vf[vf_id]); if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", vf_id); ret = -EAGAIN; goto out; } if (enable == vf->spoofchk) goto out; vf->spoofchk = enable; memset(&ctxt, 0, sizeof(ctxt)); ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; ctxt.pf_num = pf->hw.pf_id; ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); if (enable) ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); if (ret) { dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", ret); ret = -EIO; } out: return ret; } /** * i40e_ndo_set_vf_trust * @netdev: network interface device structure of the pf * @vf_id: VF identifier * @setting: trust setting * * Enable or disable VF trust setting **/ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); return -EINVAL; } if (pf->flags & I40E_FLAG_MFP_ENABLED) { dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); return -EINVAL; } vf = &pf->vf[vf_id]; if (!vf) return -EINVAL; if (setting == vf->trusted) goto out; vf->trusted = setting; i40e_vc_notify_vf_reset(vf); i40e_reset_vf(vf, false); dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", vf_id, setting ? "" : "un"); out: return ret; }